Boston · Month comparison
May vs October
October ranks #1 overall vs May at #4. Fall foliage peak (Oct 10-25) plus Salem Halloween Month — Boston's most photographed weeks.
May
#4 of 12 months
Best match
Peak spring — 19°C, magnolias on Commonwealth Avenue, every harbor cruise reopens.
- ↑Commonwealth Avenue magnolias peak first 2 weeks
- ↑Boston Harbor cruises and whale-watching all running
October
#1 of 12 months
Best match
Fall foliage peak (Oct 10-25) plus Salem Halloween Month — Boston's most photographed weeks.
- ↑Foliage on Comm Ave, Public Garden and the Common at world-class peak
- ↑Salem (30 min north) Haunted Happenings runs all month
| Factor | May | October |
|---|---|---|
| Weather score | 9 | 10 |
| Value score | 5 | 4 |
| Crowd score | 5 | 4 |
| Events score | 8 | 10 |
| Atmosphere | 10 | 10 |
| Avg high temp | 19°C | 17°C |
| Monthly rain | 90mm | 110mm |
| Daily sunshine | 9hrs | 7hrs |
May trade-offs
- ↓University graduation weekends (mid-late May) push hotel rates 60%+
- ↓Memorial Day weekend marks summer transition — Cape Cod traffic begins
October trade-offs
- ↓Salem and foliage day-tripper traffic clogs every northbound road
- ↓Hotel rates spike for Head of the Charles weekend
- ↓110mm rain — wettest autumn month
Scores compare months within Boston. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →